ATE421190T1 - MULTI-CHANNEL PULSE MODULATOR SYSTEM - Google Patents

MULTI-CHANNEL PULSE MODULATOR SYSTEM

Info

Publication number
ATE421190T1
ATE421190T1 AT05744247T AT05744247T ATE421190T1 AT E421190 T1 ATE421190 T1 AT E421190T1 AT 05744247 T AT05744247 T AT 05744247T AT 05744247 T AT05744247 T AT 05744247T AT E421190 T1 ATE421190 T1 AT E421190T1
Authority
AT
Austria
Prior art keywords
modulator
modulator system
pulse width
pulse modulator
channel pulse
Prior art date
Application number
AT05744247T
Other languages
German (de)
Inventor
Kim Pedersen
Lars Arknfs-Pedersen
Original Assignee
Tc Group As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tc Group As filed Critical Tc Group As
Application granted granted Critical
Publication of ATE421190T1 publication Critical patent/ATE421190T1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4902—Pulse width modulation; Pulse position modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/114—Indexing scheme relating to amplifiers the amplifier comprising means for electro-magnetic interference [EMI] protection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit

Abstract

The invention relates to pulse width modulator system (PWMS) comprising a modulator system input (MI),a modulator output (MO), an amplitude distribution filter (ADF) ,and a pulse width modulator (PMOD), wherein said amplitude distribution filter (ADF) establishes an intermediate output signal (OS) by modifying the level of the amplitude distribution of an input signal (IS) within at least one predetermined amplitude range of said input signal (IS), said input signal (IS) being received from said modulator system input (MI), and wherein said pulse width modulator (PMOD) provides a modulator output signal (MOS) on said modulator output(MO) on the basis of said intermediate output signal (OS).
AT05744247T 2004-05-28 2005-05-30 MULTI-CHANNEL PULSE MODULATOR SYSTEM ATE421190T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK2004/000376 WO2005117253A1 (en) 2004-05-28 2004-05-28 Pulse width modulator system

Publications (1)

Publication Number Publication Date
ATE421190T1 true ATE421190T1 (en) 2009-01-15

Family

ID=34957542

Family Applications (2)

Application Number Title Priority Date Filing Date
AT04735195T ATE387750T1 (en) 2004-05-28 2004-05-28 PULSE WIDTH MODULATOR SYSTEM
AT05744247T ATE421190T1 (en) 2004-05-28 2005-05-30 MULTI-CHANNEL PULSE MODULATOR SYSTEM

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT04735195T ATE387750T1 (en) 2004-05-28 2004-05-28 PULSE WIDTH MODULATOR SYSTEM

Country Status (5)

Country Link
US (2) US7728689B2 (en)
EP (2) EP1751855B1 (en)
AT (2) ATE387750T1 (en)
DE (2) DE602004012165T2 (en)
WO (2) WO2005117253A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7728689B2 (en) * 2004-05-28 2010-06-01 The Tc Group A/S Pulse width modulator system
GB2449591B (en) * 2005-01-17 2009-03-18 Wolfson Microelectronics Plc Pulse width modulator quantisation circuit
US7613920B2 (en) 2005-08-22 2009-11-03 Alcatel Lucent Mechanism to avoid expensive double-encryption in mobile networks
US7720170B2 (en) * 2005-12-13 2010-05-18 Awq Consulting Inc. Low emission signal generator and distributor system
GB2497566A (en) * 2011-12-14 2013-06-19 Wolfson Microelectronics Plc Simultaneous transmission of a plurality of audio data streams via a single communication link
WO2013088173A1 (en) * 2011-12-14 2013-06-20 Wolfson Microelectronics Plc Data transfer
DE102022104868A1 (en) 2022-03-02 2023-09-07 Webasto SE Arrangement for operating an electrical component in a vehicle

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US6606044B2 (en) * 2002-01-02 2003-08-12 Motorola, Inc. Method and apparatus for generating a pulse width modulated signal
US20040189502A1 (en) * 2003-03-04 2004-09-30 Lee Ying Lau Multi-level pulse width modulation in digital system
US20040223545A1 (en) * 2003-03-04 2004-11-11 Lee Ying Lau Multi-level pulse width modulation in digital system
WO2004105242A2 (en) 2003-05-20 2004-12-02 Tc Electronics A/S Method of estimating an intersection between at least two continuous signal representations
AU2003243935A1 (en) 2003-07-07 2005-01-21 Tc Electronic A/S Method of establishing a pwm-modulated output signal representation
DE10337782B4 (en) * 2003-07-14 2007-03-01 Micronas Gmbh Method and circuit for effective conversion of PCM to PWM data
US6970051B2 (en) * 2003-12-08 2005-11-29 Harris Corporation Pulse width modulator circuit having negative bias
US7728689B2 (en) * 2004-05-28 2010-06-01 The Tc Group A/S Pulse width modulator system

Also Published As

Publication number Publication date
EP1751856B1 (en) 2009-01-14
WO2005117253A1 (en) 2005-12-08
WO2005117382A2 (en) 2005-12-08
EP1751855B1 (en) 2008-02-27
EP1751855A1 (en) 2007-02-14
EP1751856A2 (en) 2007-02-14
US20080278253A1 (en) 2008-11-13
WO2005117382A3 (en) 2006-03-16
DE602005012384D1 (en) 2009-03-05
US20080211594A1 (en) 2008-09-04
DE602004012165T2 (en) 2009-06-18
ATE387750T1 (en) 2008-03-15
US7728689B2 (en) 2010-06-01
DE602004012165D1 (en) 2008-04-10

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Legal Events

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